A000203 - OEIS

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A000203 as a triangular array

												1
											3		4
										7		6		12
									8		15		13		18
								12		28		14		24		24
							31		18		39		20		42		32
						36		24		60		31		42		40		56
					30		72		32		63		48		54		48		91
				38		60		56		90		42		96		44		84		78
			72		48		124		57		93		72		98		54		120		72
		120		80		90		60		168		62		96		104		127		84		144
	68		126		96		144

A000203 as a square array

1	3	7	8	12	31	36	30	38	72	120	68
4	6	15	28	18	24	72	60	48	80	126
12	13	14	39	60	32	56	124	90	96
18	24	20	31	63	90	57	60	144
24	42	42	48	42	93	168
32	40	54	96	72	62
56	48	44	98	96
91	84	54	104
78	120	127
72	84
144

A000203 as an upper right triangle

1	3	7	8	12	31	36	30	38	72	120	68
	4	6	15	28	18	24	72	60	48	80	126
		12	13	14	39	60	32	56	124	90	96
			18	24	20	31	63	90	57	60	144
				24	42	42	48	42	93	168
					32	40	54	96	72	62
						56	48	44	98	96
							91	84	54	104
								78	120	127
									72	84
										144